Introduction
Street lights are very important as they help improve visibility at night. These lights come in various sizes and power ratings. Some street lights produce fewer lumens and provide little illumination. However, many people ask, “How many lumens is a street light?” A lumen indicates how bright a light bulb or lamp is.
Street lights with higher lumens offer brighter light. As a result, these specific lights will illuminate the road or street effectively. In this article, I will discuss everything about the lumens of different street lights. After reading this, you’ll know which streetlight is the best option for you. So, let’s get started.
What is a Lumen?
Before discussing how many lumens a streetlight has, I will first explain what a lumen is. When you understand lumen, things will get much easier for you.
A lumen is a unit of measurement of light, and it is indicated by “lm”. It measures the brightness of the light a bulb or lamp gives out. In other words, if a bulb emits more light, it indicates a higher lumen output. On the other hand, dim lights indicate lower lumens. Understanding lumens is important when purchasing street lights.
Lumen is an independent unit. Many people confuse lumen with the power of a bulb, which is incorrect. Both lumen and power are different parameters. Lumen is all about light brightness and does not care about power consumption. On the other hand, watts are the unit of power consumed by the bulb. In simple terms, we indicate how much electricity a bulb is consuming.
Many believe that bulbs with higher power output produce more lumens. This was true in the past, but not anymore. There are modern LED bulbs with a lower power rating. Despite having less power, these bulbs produce excellent light brightness. For example, a 12W LED bulb can produce brighter light than an 18W LED bulb. When buying lighting, consider lumens as an essential factor for an informed decision.
You can use multiple low-power lights to achieve high lumens. Moreover, you can use a single large light, which provides more lumens than multiple smaller lights. Remember, streets, roads, and pathways require lights with higher lumens. This ensures all the roads remain visible at night. If you use lights with fewer lumens, the street’s visibility will be reduced.
How Many Lumens Is a Street Light?
There is no exact answer for the lumens of streetlights. The number of lumens a streetlight has depends on many factors. On average, streetlights installed on urban streets should offer 8,000 to 15,000 lumens. On the other hand, streetlights on highways should provide 20,000 to 35,000 lumens.
As I said above, lumen measures the brightness of lights. If the road is narrower, it will require less brightness, right? In such cases, streetlights with low lumens will work fine. That’s why village streets (smaller) require lights with around 8,000 lumens. These lights will provide enough illumination to light a small path or street.
On the other hand, urban streets are generally wider. They allow two cars to cross easily, requiring lights to illuminate a wider area. In this case, streetlights with 10,000 to 15,000 lumens are the best option. These streetlights will illuminate the road or urban street perfectly. If you choose a lumen level below 10,000, the street may not be well-lit.
Streetlights installed on highways must be very powerful with very high luminous flux. Highways are generally very wide, especially those with dual roads. So their streetlights must be at least 20,000 lumens. Ideally, you should choose a street light with over 30,000 lumens for large highways. These lights will offer excellent visibility on those wide roads.
In short, the wider the road or street, the more streetlights you’ll need with more lumens and vice versa. Remember, the height of lights from the road also influences lumen selection. If the streetlight is installed too high, you should choose a higher lumen count, regardless of the street type. The reason is that light disperses more when installed at a greater height. So more lumens will ensure enough light reaches the street for illumination.
Factors Influencing Street Light Lumens Selection
Various factors influence the selection of street light lumens. Considering these factors will help you choose the right streetlights with optimal lumens. In the section below, I will explain each of these factors and how they affect lumen selection.
1- Type of Road or Street
The lumen level of the streetlight you choose depends on the type of street. For example, narrower streets require fewer lumens for optimal illumination. That’s what I mentioned above: small streets in villages require fewer lumens of street lighting. On the other hand, busy and wider streets require streetlights with higher lumens. Similarly, if the street is in a highly populated area, other homes’ lights can illuminate the street. In such a case, using streetlights with fewer lumens can work.
2- Conditions of Area
As you know, streetlights help prevent theft and other crimes. If your area is more risky in this regard, you should use streetlights with high lumens. This will ensure all areas on the street are illuminated. Once there is less darkness, the risk of street crime goes down. In contrast, if your area is safe, streetlights with relatively fewer lumens will be enough. This factor is more influential when considering street lighting for village streets.
3- Road Width & Traffic Speed
Road width is a crucial factor to consider when choosing the streetlight’s lumen output. If the road is wider, the light needs to cover a larger area for proper illumination. In this case, you’ll have to choose streetlights with higher lumens. Some streets or roads may be narrower. This means light will cover a smaller area for illumination. This way, streetlights with fewer lumens are enough for optimal illumination. Similarly, if streets remain busy and traffic speeds are high, it will also require streetlights with high lumen output.
4- Pole Height & Spacing
It is worth noting that there are different streetlight poles available. These poles differ primarily in height. Poles with higher height require more lumens, and vice versa. The reason is that light can be lost and dispersed when the pole height is too high. Therefore, you should choose a higher lumen level to overcome this light loss.
Additionally, the distance between light poles also affects lumen selection. If poles are close together, fewer lumens is a good option. However, if the poles are far apart, you should always choose streetlights with higher lumens. This will ensure the streets remain illuminated perfectly.
5- Energy Efficiency Goals
Generally, street lights with higher lumens are bigger. They can consume more power, especially if they don’t use LED technology. In this case, these streetlights will offer higher lumen levels but increase electricity bills. If you want to reduce bills, you can use small streetlights with fewer lumens. However, I highly recommend choosing LED streetlights. Such lights offer lighting with higher lumens without burdening electricity bills. Remember, LED technology ensures better energy efficiency in these lighting setups.
Importance of Proper Streetlights Lumen Selection
It is crucial to choose the right lumen level when buying streetlights. Why? The reason is that correct lumen always offers better illumination of the streets. Below is the importance of why you should focus on balanced lumen:
- If you choose a low lumen setting, the street lights will be dimmer. They won’t produce enough illumination. In contrast, streetlights with higher lumens offer more brightness. This improves visibility on the streets and makes the space well-lit.
- A balanced lumen is always useful for reducing crime or theft risk. The reason is that streets with balanced lighting remain very bright. The thief and people with ill intent are less likely to commit crimes due to better lighting.
- One of the key advantages of proper lumens for streetlights is that it prevents accidents. As you know, roads or streets can have irregularities or holes. A person walking or driving may not see these holes and fall into them. This can cause severe accidents. However, street lights with the correct lumens make the street brighter. People walking or driving can see bumps or holes. This reduces the risk of accidents caused by low visibility.
Do Lumen Affect the Cost of Streetlights?
Yes – lumen affects the cost of streetlights. The reason is that streetlights with higher lumen levels are costly. Additionally, these lights will be more powerful and can increase electricity consumption. On the other hand, street lights with lower lumens are inexpensive and energy-efficient.
A higher lumen rating means the streetlight will produce brighter light. For this, the light will use more power in the long run. If you want to save money, you should choose LED-based streetlights. Such lights are cost-effective in the long run. First, their initial prices are lower than those of halogen-based streetlights.
Secondly, these street lights consume less power to produce light with a higher lumen level. As a result, they are more energy-efficient, producing excellent street lighting. You should not forget the cost of poles when installing streetlights. The reason is that streetlights with high luminous flux are installed at a height to achieve optimal area coverage. So you will need longer poles, which are costly too.
Frequently Asked Questions
How many lumens is a regular street light?
A regular streetlight is around 8000 to 12000 lumens. This streetlight is suitable for urban streets and will provide proper illumination. If the street is too wide, a streetlight with 15,000 to 18,000 lumens works perfectly.
How many lumens do I need for a street light?
There is no exact answer; lumen selection depends on street width, pole height, and so on. You’ll need street lights ranging from 5000 to 80000 for a narrow street. For medium size, I recommend going over 10000 lumen for optimal illumination.
Are more lumens always better for street lighting?
No. The lumen level you choose for a streetlight depends on the street’s width. For smaller streets, a lower lumen of around 8000 is fine. For wider streets, higher luminance is suitable. There is no fixed rule that you should always choose a streetlight with higher lumens.
Conclusion
In short, lumens are very important when choosing any type of light. They become a deal-breaker when choosing streetlights. The reason is that the wrong lumen level can affect the purpose and functionality of streetlights. The reason is that such streetlights may not adequately illuminate the area. The best lumen for most streetlights is around 10,000. Such streetlights offer optimal performance even if the streetlight is not too congested. On the other hand, you should have more than 25,000 lumens if the street is too wide. In this article, I have discussed everything about the streetlights and their lumen levels.